I could irritate you could irritate he could irritate we could irritate you could irritate they could irritate
V-ing form
I could be irritating you could be irritating he could be irritating we could be irritating you could be irritating they could be irritating
Perfect
I could have irritated you could have irritated he could have irritated we could have irritated you could have irritated they could have irritated
V-ing perfect
I could have been irritating you could have been irritating he could have been irritating we could have been irritating you could have been irritating they could have been irritating
Negation
Simple form
I couldn't irritate you couldn't irritate he couldn't irritate we couldn't irritate you couldn't irritate they couldn't irritate
V-ing form
I couldn't be irritating you couldn't be irritating he couldn't be irritating we couldn't be irritating you couldn't be irritating they couldn't be irritating
Perfect
I couldn't have irritated you couldn't have irritated he couldn't have irritated we couldn't have irritated you couldn't have irritated they couldn't have irritated
V-ing perfect
I couldn't have been irritating you couldn't have been irritating he couldn't have been irritating we couldn't have been irritating you couldn't have been irritating they couldn't have been irritating
Interrogative form
Simple form
could I irritate? could you irritate? could he irritate? could we irritate? could you irritate? could they irritate?
V-ing form
could I be irritating? could you be irritating? could he be irritating? could we be irritating? could you be irritating? could they be irritating?
Perfect
could I have irritated? could you have irritated? could he have irritated? could we have irritated? could you have irritated? could they have irritated?
V-ing perfect
could I have been irritating? could you have been irritating? could he have been irritating? could we have been irritating? could you have been irritating? could they have been irritating?
Interro-negative form
Simple form
couldn't I irritate? couldn't you irritate? couldn't he irritate? couldn't we irritate? couldn't you irritate? couldn't they irritate?
V-ing form
couldn't I be irritating? couldn't you be irritating? couldn't he be irritating? couldn't we be irritating? couldn't you be irritating? couldn't they be irritating?
Perfect
couldn't I have irritated? couldn't you have irritated? couldn't he have irritated? couldn't we have irritated? couldn't you have irritated? couldn't they have irritated?
V-ing perfect
couldn't I have been irritating? couldn't you have been irritating? couldn't he have been irritating? couldn't we have been irritating? couldn't you have been irritating? couldn't they have been irritating?